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Different organizations use different definitions for PFAS, leading to estimates of between 8,000 and 7 million chemicals within the group. The EPA toxicity database, DSSTox, lists 14,735 unique PFAS chemical compounds. [42] [43] An early definition required that they contain at least one perfluoroalkyl moiety, −C n F 2n+1. [12]
Long-chain PFAS chemicals perfluorooctane sulfonic acid, or PFOS, and perfluorooctanoic acid, or PFOA, are among the most studied of the nearly 15,000 types of PFAS used by industry. Both ...
There are chemicals in cookware, food, water, clothes and furniture that could cause problems for people’s health. These PFAS, or perfluoroalkyl and polyfluoroalkyl substances — sometimes ...
Food Standards Australia New Zealand found insufficient evidence to justify a tolerable daily intake (TDI) for PFHxS specifically. Therefore, the TDI level for PFOS (0.02 μg/kg) was adapted as the TDI for the sum of PFOS and PFHxS. Australia uses a drinking water guideline value of 0.07 μg/L for the sum of PFHxS and PFOS.
But filtering PFAS at the point of use or even with a whole-home filtration system amounts to a “Band-Aid” for the broader PFAS problem, Evans said. The long-term goal is to remove the ...
PFOA is also formed as an unintended byproduct in the production of fluorotelomers, [14] and is thus present in finished goods treated with fluorotelomers, including those intended for food contact. In a U.S. Food and Drug Administration (USFDA) study, fluorotelomer-based paper coatings (which can be applied to food contact paper in the ...
The US Food and Drug Administration has found food packaging materials like fast-food wrappers, microwave popcorn bags and take-out pizza boxes are a major source of dietary exposure to PFAS.
The DoD has "used foam containing" PFAS chemicals "in exercises at bases across the country". The DoD, therefore, "risks the biggest liabilities" in relation to the use of PFAS chemicals according to Politico. [71] March 2018 The PFAS Expert Health Panel on PFAS submitted their commissioned report to the Australian government. [89]
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